The buddies are selling snacks on a bullet train! Can they keep up with the high-speed demand?
which makes it harder 
to ask what happened.
مما يُصعّب السؤال عمَّ حصل
da will man erst recht nicht nachfragen.
que agora fica até 
difícil de falar com ele...
и теперь ещё сложнее спрашивать.